doubled

例句：

1. 1. The price of the product has doubled since last year.
   该产品的价格自去年以来翻了一番。
2. 2. He doubled his efforts to finish the project on time.
   他加倍努力以按时完成这个项目。
3. 3.The company doubled its profits in the past year.
   该公司过去一年的利润翻了一番。